class_docstr: Test material featurizers.
docstr: Set up tests.
docstr_tok: ["Set","up","tests","."]
code: def setUp(self):
      """
      Set up tests.
      """
      self.formula = "MoS2"
      self.struct_dict = {
          "@module": "pymatgen.core.structure",
          "@class": "Structure",
          "charge": None,
          "lattice": {
              "matrix": [
                  [1.0, 0.0, 0.0],
                  [0.0, 1.0, 0.0],
                  [0.0, 0.0, 1.0],
              ],
              "a": 1.0,
              "b": 1.0,
              "c": 1.0,
              "alpha": 90.0,
              "beta": 90.0,
              "gamma": 90.0,
              "volume": 1.0,
          },
          "sites": [
              {
                  "species": [{"element": "Fe", "occu": 1}],
                  "abc": [0.0, 0.0, 0.0],
                  "xyz": [0.0, 0.0, 0.0],
                  "label": "Fe",
                  "properties": {},
              }
          ],
      }
  
file_path: deepchem/deepchem/feat/tests/test_materials_featurizers.py
imports: import unittest
  import numpy
  from deepchem.feat import ElementPropertyFingerprint, SineCoulombMatrix, CGCNNFeaturizer, ElemNetFeaturizer
label_desc: Use image node_id 1 for calling the TestMaterialFeaturizers obj's underlying member method code with example usage: obj.setUp() without return types